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 How does your blood fight off disease?

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MJKT
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PostSubject: How does your blood fight off disease?   Sat Aug 29, 2009 7:25 am

The second defense system of our body is blood. Our ears, eyes, nose and mouth cannot stop all harmful microbes and they can enter into our blood.

White Blood Cells (WBC) and other parts of blood are sensitive for disease microbes and so move rapidly towards microbes WBC have the ability to the harmful microbes and to prevent them from spreading infection in other body parts. WBC surrounds the microbes by changing their shapes. WBC makes a substance called “Antibodies” which help them in killing microbes by sticking to microbes. Specific antibodies are used for particular microbes. Antibodies stay in our blood and protect us from getting the same disease. This is called “Immunity”.

Different “Antibodies” live in our body for different time periods. Some stay for the while life while others for short span of time
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FantasyGirl
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PostSubject: Re: How does your blood fight off disease?   Sat Aug 29, 2009 3:32 pm

thanks 4 information
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MJKT
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PostSubject: Re: How does your blood fight off disease?   Sat Aug 29, 2009 4:26 pm

mein naa socha bata doon...
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